Add video on how to troubleshoot k6 Operator

[heitortsergent]

There are several different scenarios and troubleshooting methods for the k6 Operator, as documented in https://grafana.com/docs/k6/latest/set-up/set-up-distributed-k6/troubleshooting/.

@yorugac has helped several users with troubleshooting, and it might be helpful to create a video showing how to follow some of the steps on that page instead of just having the written instructions.